<!DOCTYPE html>
<html>
<head>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <table border="1">
  <tr><td>TD #0</td><td>TD #1</td><td style="color:red;">TD #2</td></tr>
  <tr><td>TD #3</td><td>TD #4</td><td>TD #5</td></tr>
  <tr><td>TD #6</td><td>TD #7</td><td>TD #8</td></tr>
</table>
<script>$("td:eq(2)").css("color", "red");</script>

</body>
</html>